On Mon, Dec 17, 2012 at 4:49 PM, Cédric MOULLET <[email protected]>wrote:
> Hi, > Output formats: > > OUTPUTFORMAT > NAME "png" > MIMETYPE "image/png" > DRIVER "AGG/PNG" > EXTENSION "png" > IMAGEMODE "RGBA" > TRANSPARENT TRUE > FORMATOPTION "INTERLACE=OFF" > END > > OUTPUTFORMAT > NAME jpeg > DRIVER "AGG/JPEG" > MIMETYPE "image/jpeg" > IMAGEMODE RGB > > FORMATOPTION QUALITY=100 > does changing this to values between 80 and 99 change something ? > EXTENSION "jpg" > END > > URL's: > > > 1. > https://picasaweb.google.com/lh/photo/j_OClw5fGOeQE7K1wiimytMTjNZETYmyPJy0liipFm0?feat=directlink > 2. > https://picasaweb.google.com/lh/photo/3q52h52EwOp9JzZm3KAWbNMTjNZETYmyPJy0liipFm0?feat=directlink > 3. > https://picasaweb.google.com/lh/photo/GTAThw7AOVMK-j-7DWAabtMTjNZETYmyPJy0liipFm0?feat=directlink > > Thanks in advance for your help ! > Cédric > > > > On Mon, Dec 17, 2012 at 4:24 PM, thomas bonfort > <[email protected]>wrote: > >> Can you post the outputformats defined in your mapfile, and the urls used >> to access each of these images? >> >> -- >> thomas >> >> >> On Mon, Dec 17, 2012 at 4:18 PM, Cédric MOULLET <[email protected] >> > wrote: >> >>> I realize that links have been sent and not pictures >>> Here are reachable links for the three cases: >>> 1. >>> https://picasaweb.google.com/lh/photo/j_OClw5fGOeQE7K1wiimytMTjNZETYmyPJy0liipFm0?feat=directlink >>> 2. >>> https://picasaweb.google.com/lh/photo/3q52h52EwOp9JzZm3KAWbNMTjNZETYmyPJy0liipFm0?feat=directlink >>> 3. >>> https://picasaweb.google.com/lh/photo/GTAThw7AOVMK-j-7DWAabtMTjNZETYmyPJy0liipFm0?feat=directlink >>> Cédric >>> >>> >>> On Mon, Dec 17, 2012 at 4:11 PM, Cédric MOULLET < >>> [email protected]> wrote: >>> >>>> Hi, >>>> The following issue has been observed with MapServer 6.0.3: >>>> >>>> 1. Very good quality for a PNG with RESAMPLE=BILINEAR and >>>> OVERSAMPLE_RATIO=16: >>>> [image: >>>> http://wms-bgdi.bgdi.admin.ch/?lang=xx&LAYERS=ch.swisstopo.pixelkarte-grau-pk100_bazl&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG%3A21781&BBOX=513184,143152,519840,149808&WIDTH=256&HEIGHT=256] >>>> >>>> 2. Less good quality for a PNG or JPEG with default resampling settings: >>>> [image: >>>> http://wms-bgdi.bgdi.admin.ch/?lang=xx&LAYERS=ch.swisstopo.pixelkarte-grau-pk100_original&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG%3A21781&BBOX=513184,143152,519840,149808&WIDTH=256&HEIGHT=256] >>>> >>>> 3. Awful quality for JPEG with RESAMPLE=BILINEAR and >>>> OVERSAMPLE_RATIO=16: >>>> [image: >>>> http://wms-bgdi.bgdi.admin.ch/?lang=xx&LAYERS=ch.swisstopo.pixelkarte-grau-pk100_bazl&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG%3A21781&BBOX=513184,143152,519840,149808&WIDTH=256&HEIGHT=256] >>>> >>>> Any idea why the OVERSAMPLE_RATIO affects heavily the quality of JPEG >>>> images ? >>>> >>>> Thanks in advance for your help, >>>> Cédric >>>> >>> >>> >>> >>> -- >>> Political blog: http://cedricmoullet.blogspot.com/ >>> Welcome to my world: http://www.cedricmoullet.com/ >>> My Linked In profile: http://www.linkedin.com/in/cedricmoullet >>> Twitter: http://twitter.com/cedricmoullet >>> Home sweet home: >>> http://map.geo.admin.ch/?crosshair=bowl&zoom=11&X=185241.24219&Y=561288.90625&bgOpacity=0&selectedNode=node_ch.swisstopo.fixpunkte-lage1 >>> >>> >>> _______________________________________________ >>> mapserver-users mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/mapserver-users >>> >>> >> > > > -- > Political blog: http://cedricmoullet.blogspot.com/ > Welcome to my world: http://www.cedricmoullet.com/ > My Linked In profile: http://www.linkedin.com/in/cedricmoullet > Twitter: http://twitter.com/cedricmoullet > Home sweet home: > http://map.geo.admin.ch/?crosshair=bowl&zoom=11&X=185241.24219&Y=561288.90625&bgOpacity=0&selectedNode=node_ch.swisstopo.fixpunkte-lage1 > >
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